Could somebody please help me? I have spoken (after waiting forever) to two Turbo Tax reps to no satisfaction. I did not receive full tax return. Who can I talk to?

I did not receive 2nd stimulus payment.  Claimed it on my tax return.  According to Turbo Tax it was accepted but I received my tax return without stimulus.  I believe this is Turbo Tax responsiility to solve for me but I have had no satisfaction.